mint: Madinat al-Salam (Iraq)
dated 159 AH (775–6 AD)
2.88g; 28mm
Obverse field: la ilaha illa Allah wahdahu la sharika lahu; margin: denomination, mint and date
Reverse field: Muhammad rasul Allah salla Allahu ‘alayhi wa-sallam li’l-khalifah al-Mahdi; margin: Muhammad rasul Allah, followed by surah al-Tawbah (IX), verse 33.